The INJORA LCG Chassis Rig Gets EPIC!

Рет қаралды 21,371

Күн бұрын

Portals! We've still got 'em in the rear axle! But now, with a much more sensible 12.5% overdrive to the front. Weight distribution is pretty good, we've got opposed-direction drive shafts to minimize torque twist (though the portals help there too). Those long rear upper links now have a solid place to attach, with adjustment available too!
Overall, I'm pretty happy with this latest iteration of the Performance Scale rig for the upcoming Nationals...er, ECCF. (I may have been calling it Nationals without realizing that wasn't even in the name - oops!) East Coast Crawl Fest, that's where we're headed, and the end of March is coming up fast!
So, how's the latest version of our C2 Comp Rig drive? One way to find out!
Let's test!
--
In this video:
- INJORA LCG Chassis: amzn.to/3pPw3ZG
- DLUX Fabrications Ham Berger transmission
- 1.9 Pro-Line Trencher 4.75" Tires, Predator Compound, with included Pro-Line foams.
- Wheels are INJORA beadlock cheapies, 110g per wheel: amzn.to/3XZNTpp
- generic front AR44 wheel weights: amzn.to/3K8wBAO
- INJORA steel universal drive shafts: amzn.to/3Y0IKNQ
- HobbyWing WP-1080 ESC: amzn.to/472yV6b
- Holmes 40T Trailmaster Pro 540 Brushed
- Holmes BLS SHV500 V2 Servo @12V direct
- Turnigy 700mAh 3S 70C LiPO
- SCX10II RBK AR44 single piece front axle
- SCX10II RBK shocks (after-market super-soft springs in rear)
- assorted links and cross-members from the spares box
- Rear axle from the RGT Challenger
-
CHAPTERS:
0:00 Perf Scale Update
1:37 Rock Test
5:45 Test Debrief
--
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Пікірлер: 115

@elduderinolebowski5411 Жыл бұрын

One word: WOW. I don't think we've seen anything tackle all six problems so apparently effortlessly like this. Some have done certain problems better than this, others worse... but overall, nothing has just walked all six together in one go quite like this. I'm very impressed. Reasonably competitive? Understatement of the year. I think you've got a class leader here. Brilliant. Absolutely brilliant. Good work, sir. Wish I could smash that like button a bunch of times for you.

@RCTNT Жыл бұрын

Heh thank you. It is satisfying. But it's still going to be behind the more developed kits in higher end competition. I have a bit more I want to try yet but it has been a satisfying road to this point! Thank you kindly :)

@jimveness9375 Жыл бұрын

Great progress and great result Craig !

@RCTNT Жыл бұрын

Thanks, I'm happy with it!

@BUILTLIGHTWOUNDTIGHT Жыл бұрын

Very impressive setup you have here!!! 😎

@RCTNT Жыл бұрын

Thanks! I'm happy with it!

@iron9973 13 күн бұрын

nice , the injora LCG chassis's are nice ,and work really well

@RCTNT 13 күн бұрын

They certainly do, though I've learned that they're often copies of other existing chassis kits, which is disappointing.

@rcmakingtracks18 Жыл бұрын

That's a very nice looking and capable rig. Great job Craig... john

@RCTNT Жыл бұрын

Thank you, John. I'm sure happy with it! Cheers

@danweiss1371 Жыл бұрын

Talk about a perfect timing video. Is me and one of my good friends we’re talking about trying one of their frame kits they’re really so reasonable. And this definitely made up my mind. Thanks.

@RCTNT Жыл бұрын

Ah, great! Happy to be useful :) You'll love it.

@aaronhouser3711 Жыл бұрын

Well done!

@RS-sv3bl Жыл бұрын

Monstered those problems - that was enjoyable to watch

@RCTNT Жыл бұрын

Didn't it just. Thanks, it was fun to make, too.

@mdgeist472 Жыл бұрын

Wow! That rig crushed the 6 problem course. Well done! Be interesting to see how well other LCGs do.

@RCTNT Жыл бұрын

The more expensive stuff will still make mine look crude in comparison, but it's now at least within reach of similar performance. Still not as good as the expensive stuff, but not too far behind!

@michaeldorich4485 Жыл бұрын

I know almost nothing about crawlers. I do know this crawler went through the six challenges easier than any other rigs I remember watching. It's obvious you're very happy with it. You should be. You've done a lot excellent work. I think you can go into the nationals with confidence. Good luck.

@RCTNT Жыл бұрын

Heh thanks Michael. It'll still be outclassed by the expensive stuff but we'll see where things fall on the day. I'm cautiously optimistic it'll be enough. We shall see!

@brianmassey7563 Жыл бұрын

The beauty of a proper LCG setup. NIce job! I think you need printed inserts over the foams though....didn't see any real side hill action. I love the way they just pull over problems.

@RCTNT Жыл бұрын

Thanks Brian. 3d printed inserts, eh? That makes sense. I haven't heard of them, but I presume they're common on KZfaq. (I don't spend much time on KZfaq, funnily enough - too busy making videos for it!!). I'll look into this, I understand what they likely do based on the description and it sounds like a great idea! Thanks :)

@roblowrie1969 Жыл бұрын

Very nice rig. 😎👍🏻

@RCTNT Жыл бұрын

Thanks Rob

@AgeOrmstad Жыл бұрын

Nice man 💪😎

@RobKingRC Жыл бұрын

Nice rig,, Just finished building one myself, absolutely love it!

@RCTNT Жыл бұрын

Right on! Great value eh

@RobKingRC Жыл бұрын

@@RCTNT Excellent value ! And the after market is endless.

@doubledome2076 Жыл бұрын

One cool machine‼️😎👍👍🦾🦾

@RCTNT Жыл бұрын

She's coming along nicely eh! Nice and cheap too, which is a winner! Cheers

@jeffparryncc1701 Жыл бұрын

WOW what a beast 😎👍

@RCTNT Жыл бұрын

Coming along nicely, yeah!

@shoky11TV Жыл бұрын

Hi Craig - I'm about to build the same chassis (just came in the post) with my TRX4 axles and transmission. I'm attempting to go 4 link front also, so I may need to get creative with the front left upper link....I hope it performs as well as your setup does!!

@RCTNT Жыл бұрын

If you're putting the servo on the front axle, your 4 link setup will be great. You can do it! Enjoy the build :)

@jeffreyarmstrong632 Жыл бұрын

The rear links with the super high clearance bends would cause your driveshaft to hit the rocks, if you just do two kinks near the centre skid down to the rear they will be in line with your drive shaft and slide on the links rather than a rotating shaft. Might even make your already awsome performing rig even better

@RCTNT Жыл бұрын

Thank you, that's wise. I've been thinking on it and considering another option that I hope to show off in a while. Something a bit different to normal that will get the shaft up and out of the way. Great suggestion you've got and it'll by my Plan B :)

@GiftedFingersSVS Жыл бұрын

good setting bro........i like it. from Malaysia Rc Rock Crawler. ( custom crawler )

@RCTNT Жыл бұрын

Thanks. Still fiddling with options here but it wasn't bad for a cheaper chassis! Not bad at all.

@GiftedFingersSVS Жыл бұрын

@@RCTNT yes I agree with you

@M-F-CORGI Жыл бұрын

my poor not so little bronco is gonna have a damn hard time keeping up with you hahaha

@RCTNT Жыл бұрын

We're gonna have a blast on the rocks and that's Good Enough (TM). I mean, you could probably throw 4.19" tyres on that Bronco and drive alongside my JLU in Scale-1 instead if you wanted... and probably be fairly competitive there, especially with portals and rear lockers...

@M-F-CORGI Жыл бұрын

@@RCTNT it's tempting to get a set of 4.19 and just go in both class if they don't clash. Fun will be had regardless

@RCTNT Жыл бұрын

You'll probably be right to do that, but we can spec on the day to make sure. No overdrive and straight rear links are the main other things to consider for Scale-1, but I have recent videos that walk you through the main points for both classes: Scale-1: kzfaq.info/get/bejne/bJ1_atyJvZOaqZc.html P/Scale: kzfaq.info/get/bejne/hbR8qaR3mL_Sp5c.html But yes, fun is the main thing!

@Br0rB Жыл бұрын

I've been thinking about getting this chassis for a little while now, and try and use some of my RGT EX86100 Pro parts with it. I think you may have convinced me to get one. It's definitely on my list of stuff to get now. I'd probably combine it with an outrunner and a Rhino ESC. Should be good. :D

@RCTNT Жыл бұрын

I've been looking at that motor and esc combo. Seems like good value, and it'd sure suit this chassis. Nice thinking.

@Br0rB Жыл бұрын

@@RCTNT I saw Crawler Canyon test that ESC, and he was really happy with it. I have one on the way, and already have one of the 9imod outrunners in my RGT, but paired with a Hobbywing 10BL120, which isn't all that great for a crawler. The motor is really nice though, and I reckon using the RGT parts on the Injora chassis should work great. I don't have a whole lot of spare stuff for 10th scale, only lots for the smaller scale stuff, so RGT it is. :D

@RCTNT Жыл бұрын

Ah right! I've seen those 9 motors too, but haven't looked closely yet. Also haven't watched or read anything about the outrunner combo, but it's been in my cart for a few weeks!

@jasondionne1214 Жыл бұрын

Nicely done ! I’m currently running a Gspeed V3. Once you build an LCG chassis it’s difficult to go back to standard rails for anything but trail runs. 👍🏻

@RCTNT Жыл бұрын

Oh I haven't tried a gspeed before. You like it? It's lucky I do a lot of trail runs, then!

@jasondionne1214 Жыл бұрын

@@RCTNT Yeah I really like my Gspeed. I started with the aluminum V3 and then just had to switch over to the white carbon fiber V3. I started with the Axial Deadbolt 10ii when it first came out, and have just modified it over all this time. Not bragging at all because it’s my only rig, but here’s a quick highlight parts list. V3, Vanquish F9 axles-3 gear transmission-wheels, Hardcore RC titanium high clearance links, IERC bumper-sliders-bed, Proline Swampers-Comp Wagon body, Hobbywing Fusion, Savox servo. I finally considered it done and then had to order the Traxxas 2wd Slash kit 😂

@RCTNT Жыл бұрын

Very nice indeed! I bet it's a beast!

@jasondionne1214 Жыл бұрын

@@RCTNT it is a beast. So is your new build 👍🏻 Keep smashing all 6 of them problems. Thank you and keep having fun. I definitely enjoy watching your channel

@RCTNT Жыл бұрын

Will do and thanks :)

@DurpVonFronz Жыл бұрын

TRENCHERS!!! Got 2.2 on the Danchee, thing wants to climb walls those things are so sticky!!

@RCTNT Жыл бұрын

They're great tires, no doubt

@lowslowcrawlers1304 Жыл бұрын

What foams are you running? Are those tires G8 or Pred?

@RCTNT Жыл бұрын

They're just the single stage foams that came with the tires, which are Predator compound. This is one of the things I need to get done before I can call this rig ready.

@Dozern90 Жыл бұрын

Would love to know what links you sourced in the end. Its a jungle out there and the stock links that come with the kit are dog :S

@RCTNT Жыл бұрын

I think they were Samix TRX4 bent lowers that I bought 4 ish years ago, then a jumble of whatever else fit the wheelbase I was going for. I'm actually using those stock links in another rig, they're not so bad (... I thought?) Sorry I can't give you better info here. I've built, rebuilt, completely disassembled and then repurposed most parts from this build at this point. The chassis rails are back in my chassis rails drawer for now!

@zanthraxnl Жыл бұрын

What is the tape you wrap the wiring in? Looks clean! Thanks.

@RCTNT Жыл бұрын

Thanks! Tesa tape, it's an automotive fabric tape that sticks to itself really well. I love it

@davidconaway2830 Жыл бұрын

Lovely progress on your comp rig. Do you have a best guess on the finished weight?

@RCTNT Жыл бұрын

Thanks, it's 2.7kg (5.9lb) with body, but that's with 110g wheels on each corner. They'll be coming off and I'm seriously considering changing to a brushless outrunner, which will also shave 100g+ off the weight.

@davidconaway2830 Жыл бұрын

@@RCTNT It sure looks lighter than 5.9lbs...and more importantly....it climbs like it's less than 5.9lbs. Best of luck, and please keep us updated on the progress as well as your competitions.

@RCTNT Жыл бұрын

It is too heavy but I'm hoping the wheel and motor change will help enough to get it over that final perceived boundary of limitation for this class. I'm working on it and will do, thanks David.

@muskokamike127 Жыл бұрын

6:47 you mentioned the motor towards the rear. You might be able to make your own motor mounting plate and move it over to the front side of the trans. You'd have to reverse the direction of rotation but it's doable if you have the space. You also might have to extend the pinion too to reach the main drive gear.

@RCTNT Жыл бұрын

Thanks, I could do that. I've also considered remote mount and a universal shaft and bearings to get it to reach and sit snugly. What I think I'll end up doing is simply replacing it with a lightweight outrunner brushless. Then it won't be an issue!

@muskokamike127 Жыл бұрын

@@RCTNT Yeah outrunners are tiny. I know they are used a lot in planes, how are they for low end torque for crawling? I remember the first time I saw one: what is this sorcery? fix the stator and rotate the housing? what? lol..... KT had an experimental carbon fibre 3d printed POS that had 4 small outrunners on each wheel. Now imagine having that weight down low, and torque vectoring....google inwheel motors....companies have been experimenting with them for a while now.

@RCTNT Жыл бұрын

I've played with hub motors before (aka in-wheel), they're interesting. But yes, outrunners look crazy when they're going. My mini comp rig has a 380 outrunner - they're not great on the same broad big torque AND high speed and power of inrunners, but you can build it for either amazing speed or punchy, axle snapping torque, which is perfect for crawling. The Holmes Revolver is what I'll put in this one I think.

@muskokamike127 Жыл бұрын

@@RCTNT good to know. Do you do that via gear ratios? (speed vs torque) and just wondering, is there any issue with using them in the dirt for bashers and off roading?

@RCTNT Жыл бұрын

It's done with windings when the motor is made. Definitely they're more susceptible to dirt and contaminant ingress, they are a fair weather motor and dust will be hard on them. You usually can pull em apart for servicing but honestly, modern brushless inrunner motors are so cheap and powerful that they're the better option in dust and mud and such. Look at the Surpass unit I put on my Bandit, for example. Cheap and just epic, and not bothered by dust like an outrunner!

@aja_rc 5 ай бұрын

Nice car

@RCTNT 5 ай бұрын

Thanks, I liked it

@aja_rc 5 ай бұрын

@@RCTNT so it’s very smooth

@RCTNT 5 ай бұрын

It was, yeah

@Wild_Buggy Жыл бұрын

👍👍👍

@RC-Homesteaders 2 ай бұрын

My Axial Jeep CJ-7 might walk those rocks like a snail on its way to the strip club😊 if not just a lil blip of the throttle and she will sail/ brawl over it😮 nice crawl bro 👍

@RCTNT 2 ай бұрын

In stock form it'll do problems 1, 2, 4 and 5. With some mods it'll walk all 6 no worries 👍 I love the body on the CJ7. Very cool.

@RC-Homesteaders 2 ай бұрын

@@RCTNT yes sir 👍 And thank you for the visit and compliments 🥂

@zonegamma8197 Жыл бұрын

those Injora cheap parts lets us play like we played with lego

@RCTNT Жыл бұрын

Ha! Nice one. Yeah that's about right!

@BK33REVIEWS Жыл бұрын

What links are you running specifically rear

@RCTNT Жыл бұрын

They were diy ones. I'm really sorry but I didn't measure them and the car is apart and rebuilt another way now!!

@yurlov78 Жыл бұрын

Хорошая работа. Серва на руль, находится на мосту?

@RCTNT Жыл бұрын

Thanks. Yes, servo on axle is legal for this class, so definitely worth doing.

@quranshare411 Жыл бұрын

Which one is better betwen injora lcg vs cross rc at4v?

@RCTNT Жыл бұрын

They're completely different. The Injora lcg will give you a more capable base on which to build a capable rock crawler, while the AT-4v is an exceptional all rounder trail rig and crawler. I haven't actually had the at4v here yet but it looks like it shares a lot in common with the AT4.

@LyrickCZE 9 ай бұрын

Hello, sir! I started my crawling journey with extremely cheap RGT crawler that I improved over time to beat my friend's twice or three times the price crawlers : ) But I think I want to move it to the next level, but still on budget. Injora chassis seems like a great choice? You look like you have ton of experience and knowledge! Would you be willing to provide some ideas and answers regarding the build choices, please? Thank you very much in advance for contacting me!

@RCTNT 9 ай бұрын

The ideas and answers I can give you are in these videos. For sure, there are performance gains to be found such these CF chassis kits, no doubt. Go for it.

@LyrickCZE 9 ай бұрын

@@RCTNT Hi again! So regarding the questions I mentioned - it may sound basic to you, but thats exactly what I am having hard time finding.. so here is few so far: 1.) The motor in the video doesnt look like the one in the description? 2.) How to determine the lenght of the shocks? 3.) What budget portal axles would you recommend, I have none spare. 4.) HW Fusion worth the upgrade? Thank you!

@RCTNT 9 ай бұрын

Happy to answer: 1. the motor is the exact one in the description, the Holmes 40T. It's epic, but not cheap. Pairs well with WP-1080. 2. shock length is measured from middle of the rod ball end at each end of the shock. If you're asking how to know what length shock to use, that's more of a personal preference question, but a good place to start with a chassis like this is 80mm, give or take. I'd suggest you want at least 60mm and you almost definitely don't want to go longer than 95mm, but 80mm is about the sweet spot. 3. I like the Capra portal axles. There are knock-off versions of them everywhere, such as these: amzn.to/3RFPoYr 4. Fusion is excellent, but it's heavy and long. I'd recommend it in a trail rig, it's brilliant. However, a small outrunner and ESC combo is better for comp applications, such as this: amzn.to/46bMRtJ (both the ESC and the motor are in that same listing, available separately. The 1900kv motor and the 40A ESC would be a good pairing).

@LyrickCZE 9 ай бұрын

@@RCTNT Thank you for detailed answers! But the motor you use in the video is Torquemaster instead of Trailmaster that says description, I assume? Im so lost in the motors to be honest, there is Crawlmaster Sport, Trailmaster Sport, Torquemaster Expert, Crawlmaster Expert, TorqueMaster Pro,.... I dont seem able to do proper decision here. So because Fusion is heavy, thats exactly why you use 540 instead of 550? Thank you very much for your shocks and axles suggestions.

@RCTNT 9 ай бұрын

Holmes Hobbies motors have a variety of descriptors, but they make sense once you understand what the words all mean: Torque vs Punch: Torquemaster is a 5-pole or 5-slot designation. Slower, but better low speed control. Trailmaster is 3-slot designation, which is punchier but lacks that low speed buttery smoothness. It depends on how you like to drive. Budget vs Optimal: Sport is the budget line. Cheap, non serviceable. Expert is rebuildable and with better magnets. Pro is like Expert, but hand wound for maximum performance and optimisation during construction that machine winding may lack. Fusion is still a good option, as it's only a 540 motor but there's an esc tucked in there too. The problem is the motor casing is extended to fit it, so you've essentially got a metal barrel for an esc enclosure. That's not optimal for competition, but for a trail rig it's wonderful. Really depends on what you want from your crawler. Cheers 🙂

@polishguywithhardtospellna8227 Жыл бұрын

I wonder if cheater rig build is possible, based on a chassis like this for some milder classes? From my understanding (not participated), polish rules are quite loose for milder classes, so they don't specify chassis type. Having this underneath a standard body with points accessories, would prolly wipe the floor with competition. I might be wrong for some official competitions though, as I familiarised myself only with rules for this one major, yearly meet-up /competition 2 day event.

@RCTNT Жыл бұрын

My latest WRCCA intro series covers this. Can't do it for Scale-1. It would indeed be a cheater chassis, yes!

@muskokamike127 Жыл бұрын

6:54 you might want to move that strap on the left, it might stop you from sliding over rocks. (or was this just for testing?) Other than that, that thing just purred over your problems. I'm going to say "almost" effortless. The bent swing arms are the cat's ass.....(north american term)

@RCTNT Жыл бұрын

Cat's ass, duck's nuts, same same :) I need to replace the wheels now, remove the strap and fit the 3m snap tape, etc. Get a body painted and fit. Little things but a few of them to do now I'm happy enough with it!

@muskokamike127 Жыл бұрын

@@RCTNT haha duck's nuts....I'm going to have to remember that one...that's hilarious.... Yeah, some finishing touches but technically, that's thing's a home run.

@RCTNT Жыл бұрын

Thanks, I'm happy with it. Mostly!

@1BARBAS 5 ай бұрын

How is this build?❤

@RCTNT 5 ай бұрын

It was good, especially for the price.

@soundscare Жыл бұрын

Those GPM links are trash. Will break for sure.

@RCTNT Жыл бұрын

Do you mean those black front bent links I found? They're not super strong but I think they'll be ok on the front. I don't know I'd trust them in the rear but hopefully they last ok. These ones I've put on are 12 years old and have been run on a few other rigs in the past, so I'm hopeful they'll last here too! All the other links are legit stainless steel or better.

@soundscare Жыл бұрын

@@RCTNT yes. I broke those almost instantly

@RCTNT Жыл бұрын

Got it. OK thanks for the opinion on this. I'd have forgotten about it completely otherwise and now I'm worried about them breaking during comps. They have lasted this long but they haven't been in competition before. Might look into making my own. Hmm.

@Muresanady2011 Жыл бұрын

@@RCTNT hy Craig, how do you do your own links for that rig? is it possible to have the lenght of them? THx from ROMANIA :)

@RCTNT Жыл бұрын

You can bend stainless steel bars a few ways. Oxy acetalene torch and careful heating in a vice with nuts in each side to control the bend is one way. Best to cut your own threads rather than bending threaded rod, as I've found that tends to break unless you're only doing very minor bends. For this rig, I used a mix of links I already had from different sources. Here are lengths for each from center of ball end, in a straight line (ignoring bends, just from end to end): Front upper: 82mm Front lower: 94mm Rear upper: 137mm Rear lower: 146mm

@canuckchuck8836 Жыл бұрын

So capable! I am sure you saw this but it seems like the center skid gets hung up. Still...awesome work!

@RCTNT Жыл бұрын

It did touch a little in places but the main place it was getting hung up was those straight front links. I've swapped them out now and I think we're in a better position again. Still tuning!